Dorsal branches of superficial radial nerve: an anatomic study with potential clinical applications |
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Authors: | A T Tellioğlu I Tekdemir M Ersoy O Karabağ |
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Institution: | (1) Ankara üniversitesi Tip Fakültesi Anatomi Anabilim Dali, Sihhiye – Ankara, Turkey e-mail: ibrahim.tekdemir@isbank.net.tr Tel.: +90 312 3105001, Fax: +90 312 3106370, TR;(2) Department of Plastic and Reconstructive Surgery, School of Medicine, Kırıkkale University, Kırıkkale, Turkey, TR;(3) Department of Anatomy, School of Medicine, Ankara University, Ankara, Turkey, TR;(4) Department of Anatomy, School of Medicine, Kırıkkale University, Kırıkkale, Turkey, TR;(5) Department of General Surgery, School of Medicine, Kırıkkale University, Kırıkkale, Turkey, TR |
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Abstract: | An anatomical study was performed to assess the course of the dorsal branches of superficial radial nerve and to investigate
potential clinical applications in hand surgery. Eight upper extremities were dissected, using an operating microscope. All
branching points of the superficial radial nerve were noted and the distances from the radial styloid process were recorded.
Their proximity to neighboring vascular structures was noted. The superficial branches of the radial nerve can vascularize
axial neurofasciocutaneous flaps via their paraneural arterial network. In addition, various reverse neurofasciocutaneous
flaps may be harvested, based on dorsal branches of the superficial radial nerve. The nerve can be anastomosed with a suitable
nerve in the recipient area. The dorsal branches of the superficial radial nerve can easily be added to the reverse first
dorsal metacarpal artery flap and other reverse dorsal metacarpal artery flaps, thus making it possible to form a sensate
flap. These branches may be anastomosed with nerves in the recipient site, such as dorsal branches of digital nerve stump,
without significant donor site morbidity. A free sensate first dorsal artery flap can be prepared with a combination of dorsal
branches of the superficial radial nerve and used with the same indications as a free digital artery flap. It has some advantages
over the free digital artery flap, because the main neurovascular structures of the finger are kept intact. Finally, a dorsal
nerve branch which accompanies the first dorsal metacarpal artery may be harvested with this artery and a subcutaneous dorsal
vein as vascularized nerve graft. It can be used to repair a digital nerve defect in dense scar tissue.
Received: 3 January 2000 |
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Keywords: | Neurofasciocutaneous flap Sensate flap Nerve graft |
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